# Joeys first 14 quiz grades in a marking period were as follows: a. Calculate the mean. Show your work. b. Suppose Joey has an unexcused absence for the 15th quiz, and he receives a score of 0. Recalculate the mean. What property of the mean does this illustrate? 86 84 91 75 78 80 74 87 76 96 82 90

Chapter 1, Exercises #87

Joey’s first 14 quiz grades in a marking period were as follows:

a. Calculate the mean. Show your work.

b. Suppose Joey has an unexcused absence for the 15th quiz, and he receives a score of 0. Recalculate the mean. What property of the mean does this illustrate?

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